Whats the most you've hauled in your prius?

yep that sounds exactly like me. just remember to change the transmission fluid a lot more often I’m trying to devise a way where I could do quick transmission fluid changes possibly by drilling and tapping through the case.
One of the secrets to long life on smaller vehicles even larger vehicles when you constantly overload the weight limit load changing your transmission fluid every 20,000 miles or so and if you have a rear end or front end differential constantly changing differential fluid it becomes easy to get that 300,000 or 400,000 miles. Never allow the breakdown from heat and your clutch packs to create that burnt varnish and the small micro metal particles that continuously float around like 3000 grit sandpaper in your system keep it well diluted down greatly extend the life of transmissions and ruin differentials.

 

35 case of water 1300 lbs of water. Almost destroyed my suspension.

SM-J737T1 ?